Exploring crop diversity at the Living Field …. new series starting with Crop diversification.
Tag Archives: medicinal
Bog standard medicinals
Throughout August, wet ditches and banks and boggy corners are filled with wild plants in flower and host to many types of insect.
Many of these plants have at some time or another been used in medicinal preparations – meadowsweet Filipendula ulmaria for fevers, and with willow the source of precursors of aspirin, valerian Valeriana officinalis as sedative, wild angelica Angelica sylvestris as condiment and cure-all, sneezewort Achillea ptarmica to clear a blocked nose, hemp-agrimony Eupatorium cannabinum for ‘catarrhs and coughs’ and yellow iris Iris pseudacorus whose uses are so wide-ranging that one alone can’t be mentioned.
Hardly valued now, they still offer rich findings to those who wish to explore our botanical heritage.
The roadside bank and ditch above, in Strathnairn, holds, within a three metre length, all the herbs mentioned here except hemp-agrimony. Sneezewort is growing at the front on drier ground. Lower images, floral branches of meadowsweet (right) and angelica, each home to many insects.
These plants thrive where the surrounding vegetation is semi-natural or else grazing land having few or no inputs of mineral fertiliser.
Elsewhere, the runoff from well-fertilised arable or grass encourages aggressive and dominant weeds – willow herb, thistles, nettle, docks and the sprawling cleavers – that soon oust the more delicate and slower growing.
The Living Field garden grows all the medicinal plants mentioned here, but for garden angelica rather than wild angelica.
Sources for medicinal uses: Grigson G 1958, 1975 An Englishman’s Flora. Darwin T 1996, 2008 The Scots Herbal. Plants for a Future www.pfaf.org
[Live on 16 September 2015]
175 years ago today
As if to presage our various web-entries on natural fibres, oils, medicinals and culinary spices, the notes below, from the Advertiser, of 1 May 1840, reproduced in the book ‘The Trade and Shipping of Dundee 1780-1850 by Jackson & Kinnear [1], confirm Dundee’s desire to trade globally in natural products in the mid-1800s.
[Images to be added]
Arrival of the Selma at Dundee
The time (1840) was transitional for Dundee and its hinterland. It was at the beginning of a phase of international trade that gave the area status as a port and manufacturing centre. Jackson & Kinnear relate that the barque Selma arrived on that day from Calcutta … the first with cargo directly for Dundee.
Selma contained, among other things, over 1000 bales of jute, many sacks of unseed [2] and linseed, 300 bags of sugar, more than 1100 bags of rice, coir fibre from coconut and almost 2000 whole coconuts, and teak planks and bamboo; also buffalo horns; spices and condiments – preserved and dry ginger, canisters of arrowroot, tea, black pepper, cloves, nutmegs, mustard seed, castor oil, chillies and cubebs [3]; hogsheads of wine; and then borax and camphor; samples of hemp Cannabis sativa, presumably for fibre. This is an amazingly varied cargo of plant, animal and mineral goods coming into Dundee, on one ship, 175 years ago.
Half-forgotten plants and natural products
Many items in the Selma’s cargo are still in common usage today, but others may be less familiar. Are you kitchen-cupboard-ready?
Arrowroot a starch from tuberous parts of the roots of some tropical species, e.g. cassava Manihot esculenta, used as a thickening agent in cooking and to make arrowroot biscuits – biscuits your granny gave you, proper, decent, thin, no chocolate, no sugar, could be dunked in tea without falling to bits and dropping in – just biscuits.
Castor oil (beavers love it) from the castor-oil plant Ricinus communis, among other things, used as a laxative: pinch the nose, open the mouth and in with the spoon! Castor oil has many legitimate medicinal and industrial uses, but its laxative, and thereby dehydrative, properties have been used as a means of systematic punishment and torture [4]. The seed-oil is extracted by complex methods; the seeds also contain the highly poisonous ricin.
Borax (not a superhero but) a white crystalline substance made from a salty deposit when lakes in some parts of the world such as Tibet evaporate. Borax is used as a mild disinfectant and cleaner. It was put on children and other humans to cure infections like athlete’s foot and dabbed on mouth ulcers (it stings!).
Camphor. A strongly aromatic extract from some tropical trees, also found in the plant rosemary. Went into mothballs, made old drawers smell funny. Camphorated oil got rubbed onto childrens’ skin to do it good.
Cubebs from Piper cubeba a bit like black pepper corns but with a short stalk (‘pepper with a tail’), mainly grown in Indonesia, and traded for many centuries in that region; employed as an aphrodisiac in Goa as reported by the traveller Linschoten in the 1580s (Q: how did these explorers and ethnobotanists get to know such things – did they experiment?), stimulant and antiseptic, and a tonic for ‘every disease that flesh is heir to’ [3] ….. and much more.
What were they like!
The question you have to ask is what Dundee folk were up to in those days 175 years ago, at least those few that could afford all these exotic imports. Hemp, cubebs, cloves, hogsheads of wine … the ingredients of wild days and nights, and then they came down to earth with borax, camphor, castor oil and coir shirts. And what about the buffalo horns – what were they used for?
Sources and notes
- Jackson G, Kinnear K. 1991 The trade and shipping of Dundee 1780-1850. Publication 31, Abertay Historical Society, Dundee. Scanned 2010 and available online http://www.abertay.org.uk. The list of commodities carried on the Selma is given at page 20 and Ch 3 note 32.
- Unseed – this had the Living Field in a stir. Even Burkhill’s 2400 pages did not list it [see note 3]. But thanks to an online note found from an internet entity named ‘cyberpedant’, we are reassured that the original was likely ‘Linseed’ and that when documents are scanned, the shape ‘Li’ is commonly read as ‘U’. Relief! Otherwise we’d be scanning the world for unseed seed and never finding it.
- Cubebs. Notes above taken from Burkhill IH, 1966, A Dictionary of the economic products of the Malay Peninsular. Ministry of Agriculture and Cooperatives, Malaysia (2400+ pages). On the aforesaid properties, Burkhill cites Jan Huyghen van Linschoten’s Historical Voyages, published in English 1610.
- Castor oil. The author Umberto Eco, in the Mysterious Flame of Queen Loanna (2004), relates in Ch 12 a story of a journalist in fascist Italy being forced to swallow a bottle of castor oil as punishment. But after the first two purgings, he regained enough presence of body and mind to bottle and seal the next expulsion of oil and faeces. The bottled contents, sealed from the atmosphere, were kept in hope that the fascist tide would turn, and when it did, the means were found to trace the original perpetrator and pour the 21-year-old vintage down his throat. A delicious passage!
Hairy teacake
Of the photos taken at the Commonwealth Games fabulous opening night in 2014, the one icon of note missing from the collection was the Tunnock’s Teacake, the giant red and silver teacake replicas on legs, cavorting around the arena … not a single photo turned out.
That’s why we added the nearest thing – the marsh mallow. This plant was the source of marshmallow, the sticky confection used in cakes and now mostly replaced by other sweet sticky stuff, still called marshmallow. Yet it’s the hairy relatives of the marsh mallow that are more widely cultivated.
The marsh mallow Althea officinalis is a plant that lives in marshes and is one of the mallow family – that is why it came to be known as marsh mallow – but it also be grown in gardens and the Living Field has a few individuals in its Medicinals collection. The name officinalis indicates its use by the apothecary, in this case as a poultice, something to put on wounds. The plant has a darkness about it, the not-quite-white flowers never without a purplish tinge spreading up from the base, but its value to people over the ages is unquestioned.
This mallow family has many other useful plants in it, notably two that are valuable because of their fibres. Cotton and kapok are from warm countries and, unusual among the fibre plants, produce the fibrous material around their seeds, whereas most commercial fibre plants produce it in their stems. Cotton is now grown worldwide, over more area than any other fibre crop. Kapok is less familiar – the fibres used to be stuffed in pillows and furniture – but most kapok now sold is artificial, not made from the plant, but still called kapok.
The flowers of these plants are similar, the parts arranged in ‘fives’. (The specific name of kapok is Ceiba pentandra). But plants of the mallow family differ in many other aspects. Mallows in Britain are small or large perennial herbs, the marsh mallow reaching one and half to two metres; cotton can reach two to three metres; but the kapok is a big tree. An example is shown at the lower left of the images above, the red flowers colouring the outer branches of the tree, this one near Mandalay in Burma.
There is more on cotton and kapok on the living Field’s new Fibres pages, part of the 5000 years project.
Opium poppy by Jean Duncan
For the 10-year celebration, Jean spent various times in the Garden looking and sketching, assembling material for teaching and an ebook. The opium poppies Papaver omniferum were a fine sight, but short-lived, this warm year. See also … Jean Duncan’s page, Metamorphosis, the garden’s Medicinals page.
Bees
In 2013, we looked for the plants in the Living Field garden that were most attractive to bumble bees and hive bees, from the first flowers in late March, to the time of the first heavy frost in October. Most visitors were bumble bees of the commoner species, but occasionally hive bees foraged around.
We did not grow plants for the particular purpose of feeding bees, yet three areas were particularly active. One was the 10 year old meadow, where field scabious was the favourite; another was the legume collection set up in the west garden; and the third was a piece of rough ground in transition from a sown, annual cornfield to a more perennial community and containing tufted vetch and viper’s bugloss.
By mid summer, many of the bumble bees looked battered and ragged, hardly enough wing left to fly, the result of repeatedly navigating the tangle of vegetation. It’s in a bee’s nature to work itself to death for the hive, eventually falling to the ground or hanging under a flower head. We did not look for nests of the bumble bees to see how many were inside the garden; not did we observe the directions from which the bees entered and left, but that could be something to do in 2014.
Photographs and notes on these and other plants and bees can be viewed at The Garden / Bee plants. All species, including first-year plants of the two melilots, should be around in 2014. (The melilots died after flowering in 2013.) Several plants in the medicinals bed should flower well this year, labiates such as betony, and borages and foxgloves.
[Update 10 September 2014]